Rich,
If the output of your signal generator is DC coupled, that effect could be expected. The K2 input is grounded for DC but not for AC at the frequency band that it is tuned to.
Then again, you may have a shorted coupling capacitor on the output of your signal generator.
73,
Don W3FPR
> -----Original Message-----
>
> I thought my K2 receiver was dead, so I hooked up a signal
> generator to the antenna jack. I setup the signal generator for
> about 7.1mhz sine wave and 140mv p-p into a 50 ohm terminator.
> When I connect the signal generator to the connector, the signal
> goes away, just like it was grounded. I pulled terminal 3 of T4
> in the transmitter section and the signal comes back. This
> transformer only has a couple of turns, so it seems reasonable
> that it would attenuate the signal. After scratching my head for
> a while, I reconnected the transformer winding and connected to
> an antenna. It seems as if the receiver works just fine. I
> guess you can't argue with success, but I don't understand what
> is going on here. Why would the signal from the signal generator
> get grounded at the antenna jack?
>
> Thanks in advance
> Rich - KE1EV
>
>
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